Fast Food Nation? Whatever!!

I believe in doing things that you want to do that comforts you and makes you feel good as a person. Be it eating or spending time with family and friends or even doing dangerous things, whatever is your hobby you should have every right to do. Here's the thing I don't get. Why is there limits on what you should eat when you get to be a certain age? I mean that doesn't make any sense to me because you should eat whatever you feel hungry for shouldn't you? that's how it should be in my eyes. I always eat whatever I want. If I feel like a fatty burger than I will eat one or some sweet ice cream I'll eat that too, but why should I be worried to eat it? I should not have to at all in my opinion. Heart attacks and heart disease, they just use that to scare you. Even though it does happen and it is true, still, it is ridiculous that in the world you should be scared of what to eat. And here's the big question from me. Why when you eat something and you work out and burn it off or poop it out, why does it still stay in your system over time? I mean that is just sad isn't it? I don't know about anyone else but I'm going to eat whatever I want and work out and poop it all out for the rest of my great life. I'm reckless like that. Does anyone feel the same way I do? hit me up!